phaser/src/polyfills/console.js

A fast, free and fun HTML5 Game Framework for Desktop and Mobile web browsers from the team at Phaser Studio Inc.

/**
 * Also fix for the absent console in IE9
 */
if (!window.console)
{
    window.console = {};
    window.console.log = window.console.assert = function(){};
    window.console.warn = window.console.assert = function(){};
}